package com.czy.mapper;

import com.czy.pojo.Dept;
import org.apache.ibatis.annotations.*;

import java.time.LocalDateTime;
import java.util.List;

/**
 * 部门信息
 */
@Mapper
public interface DeptMapper {

    /**
     * 查询所有部门信息
     */
    //方式一：手动结果映射
    //    @Results({
    //            @Result(column = "create_time",property = "createTime"),
    //            @Result(column = "update_time",property = "updateTime")
    //    })

    //方式二：起别名
    //@Select("select id, name, create_time createTime, update_time updateTime from dept order by update_time desc")
    @Select("select id, name, create_time , update_time  from dept order by update_time desc")
    public List<Dept> findAll();

    /**
     * 根据id删除部门信息
     */
    @Delete("delete from dept where id = #{id}")
    public void deleteById(Integer id);

    /**
     * 新增部门信息
     */
    @Insert("insert into dept(name, create_time, update_time) values (#{name}, #{createTime},#{updateTime})")
    public void addDept(Dept dept);

    /**
     * 根据ID查询部门
     */
    @Select("select id, name, create_time, update_time from dept where id = #{id}")
    public Dept findById(Integer id);

    @Update("update dept set name = #{name},update_time = #{updateTime} where id = #{id}")
    void updateById(Dept dept);
}
